#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstdlib>
#include <ctime>
#include <algorithm>
#include <numeric>
#include <vector>
#include <iterator>
#include <functional>
#include <boost/bind.hpp>
#include <boost/timer.hpp>
#include <boost/shared_ptr.hpp>

using namespace std;

void Test1()
{
	int s = 1234;

	cin>>s;
        if( cin.eof() )
  	        cout<<"cin.eof()\n";
	if( cin.bad() )
		cout<<"cin.bad()\n";
	if( cin.fail() )
		cout<<"cin.fail\n";

	cout<<s<<endl;

}

void Test2()
{
	cerr<<"Cerr\n";
	clog<<"Clog"<<endl;
}

void Test3()
{
	string s;
	cin>>ws>>s;
	cout<<s<<endl;
}

void Test4()
{
	int i;
	for(;;)
	{
		if( !(cin>>i) )
		{
			cout<<"cin error"<<flush<<endl;
		}else{
			cout<<i<<flush<<endl;
		}

		cin.clear();
		cout.clear();
	}
}

void Test5()
{
	cout<<ends<<ends;
}

int main(int argc, char **argv)
{
//	Test1();
//	Test2();
	//Test3();
	Test5();

	return 0;
}
